Are we close to the QGP? - Hadrochemical vs. microscopic analysis of particle production in ultrarelativistic heavy ion collisions
Ratios of hadronic abundances are analyzed for pp and nucleus-nucleus collisions at sqrt(s)=20 GeV using the microscopic transport model UrQMD. Secondary interactions significantly change the primordial hadronic cocktail of the system. A comparison to data shows a strong dependence on rapidity. Without assuming thermal and chemical equilibrium, predicted hadron yields and ratios agree with many of the data, the few observed discrepancies are discussed.
| Author: | Steffen A. Bass, Mohamed Belkacem, Mathias Brandstetter, Marcus Bleicher, Lars Gerland, Jens Konopka, Ludwig Neise, Christian Spieles, Sven Soff, Henning Weber, Horst Stöcker, Walter Greiner |
|---|---|
| URN: | urn:nbn:de:hebis:30-6864 |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 13.04.2005 |
| Year of first Publication: | 1997 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Source: | http://de.arxiv.org/abs/nucl-th/9711032 , Phys.Rev.Lett. 81 (1998) 4092-4095 |
| HeBIS PPN: | 12873521X |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
